BOATS NATURAL VENTILATION SYSTEM HAS INADEQUATE DUCT OR OPENING SIZE TO PROVIDE NATURAL VENTILATION.DNR recd. 7/18/02. CUR #1 RECD 9/11/02. CUR 2 RECD 12/4. CUR 3 RECD 3/11/03. CUR 4 RECD 6/11/03. CUR 5 RECD 9/9/03. THIS CAMPAIGN INVOLVED 38 BOATS. OVER THE COURSE OF 20-MONTH CAMPAIGN THE MANUFACTURER PERFORMED TWO CERTIFIED MAILINGS AND COMPLETED CORRECTIONS TO 23 BOATS. SIX BOATS HAVE BEEN SOLD BY THEIR FIRST PURCHASERS AND NO FORWARDING INFORMATION WAS OBTAINED. FOUR OWNERS HAVE REFUSED REPAIR. TWO CUSTOMERS CHANGED ADDRESSES AND LEFT NO FORWARDING INFORMATION. ONE BOAT WAS DESTROYED. OTHERS HAVE NOT RESPONDED. CSASE CLOSED 3/12/04.